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1. Power switch. Switches the unit on and off. Make sure to switch the unit off when not in use.
2. AC input. Connect the supplied AC/AC power supply unit here. DO NOT use any other power supplies than the supplied one or a
genuine spare part.
3. Headphones output. A ¼” TRS connector to connect a headphone. Turn the CUE level (15) down before plugging in
any headphones.
4. Main stereo output. This is an unbalanced output, with its level adjustable by the Master volume control (19).
5. Record output. This is an unbalanced stereo output carrying the same signal as the main output (4), but not influenced by the main
volume control (19). This is normally used for recording the output to an external tape, CD or memory device.
6. Line inputs. These RCA connectors provide inputs for line-level signals to the assigned channels. The input sensitivity can be
switched to PHONO (with RIAA equalization) by means of the input switches (8).
7. Microphone input. This is an unbalanced TRS connector without phantom power provision, hence only suitable for
dynamic microphones.
8. PHONO/LINE selector switches for line inputs. These switches change the sensitivity of the line inputs between PHONO (RIAA
equalized) and LINE level. In released status, the input sensitivity is set to LINE and the indicator LED inside the switch is off, in
pressed status, the input sensitivity is set to PHONO and the indicator LED inside the switch is lit.
9. Gain control of input channels. Allows adjustment of the input sensitivity to compensate for different source volumes. To facilitate
proper setting of input gain levels, the headphone bus (CUE) and thus the input level can be routed to the LED meter by the meter
source switch (21).
10. Channel Equalizer. Allows the adjustment of the tonal balance for each of the stereo inputs in three music-specific frequency
bands with an adjustment range of -26/+12dB.
11. CUE switch for stereo channels. Assigns the respective channel to the headphone bus for pre-fader-listening (CUE). A LED
indicates the pressed position.
12. Channel fader for input channels. A high-grade 45mm fader determines the volume of the respective channel.
13. Crossfader. A high-grade 45mm fader determines the mix ratio between the stereo signals of channel 1 and channel 3.
14. Microphone tone control. Allows tonal adjustment in two voice-specific frequency bands with an adjustment range of ±12dB.
15. Microphone level control. Sets the microphone level.
16. Talkover switch. This momentary switch allows to reduce the music level by 20dB during the switch is pressed, when an
announcement is made through the microphone.
17. CUE Mix control. This control determines the mix ratio between the Main signal and the CUE signal on the headphones. If you
wish to only hear the CUE signal (which contains all channel signals of those channels where the CUE switch (11) is pressed), turn
the control to fully left position, if you wish to only hear the Main Output signal, then turn to the fully right position. Any position in
between delivers a mix of the two signals.
18. CUE volume. Determines the signal volume at the headphone output (3). Always set this control to minimum before putting on
headphones, as sudden high-volume impact may damage your ears. See further health advice below.
19. Main output level control. Determines the main output level present at output (4).
20. Level meter. Depending on the setting of switch (21), this meter will either display the level on the Main output (4) or the level of
the CUE signal (which contains all channel signals of those channel where the CUE switch (11) is pressed).
21. Meter source switch. Decides whether the master output signal (4) is displayed in stereo on the level meter (20) or whether the
level of the CUE signal (which contains all channel signals of those channels where the CUE switch (11) is pressed) is displayed
on the level meter (20). In released position, the master signal is displayed, in pressed position, the CUE signals is displayed and
the indicator LED inside the switch it lit.
For versions with AUX input:
22. AUX input. This is a 3.5mm Mini TRS socket, designed to accept line level signals as for example from mobile media players or
mobile CD players. This input is a switchable input option for stereo input channel 2.
22. SKIP FWD key. Press this key to jump to the next track stored on the MP3 memory source.
23. Play/Pause key. Start the replay or pause the replay of the currently chosen MP3 track.
24. SKIP BWD key. Press this key to jump to the previous track stored on the MP3 memory source.
25. USB (type A, female) socket to allow connection of a flash memory device (USB stick).
For versions with MP3 player:
